From d547b9e38f5268ab8272402ea9555a17f35e5a6a Mon Sep 17 00:00:00 2001
From: shenglian zhou <shenglian_zhou@163.com>
Date: Tue, 4 Apr 2023 11:27:54 +0800
Subject: [PATCH] fix: interp pseudo column can not be used without interp
 function

---
 include/libs/nodes/querynodes.h        | 1 +
 source/libs/parser/src/parTranslater.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/include/libs/nodes/querynodes.h b/include/libs/nodes/querynodes.h
index 1a9700907e..480912a8cf 100644
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@@ -298,6 +298,7 @@ typedef struct SSelectStmt {
   bool        hasUniqueFunc;
   bool        hasTailFunc;
   bool        hasInterpFunc;
+  bool        hasInterpPseudoColFunc;
   bool        hasLastRowFunc;
   bool        hasLastFunc;
   bool        hasTimeLineFunc;
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 4541002960..8e44edce17 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -1691,6 +1691,7 @@ static void setFuncClassification(SNode* pCurrStmt, SFunctionNode* pFunc) {
     pSelect->hasUniqueFunc = pSelect->hasUniqueFunc ? true : (FUNCTION_TYPE_UNIQUE == pFunc->funcType);
     pSelect->hasTailFunc = pSelect->hasTailFunc ? true : (FUNCTION_TYPE_TAIL == pFunc->funcType);
     pSelect->hasInterpFunc = pSelect->hasInterpFunc ? true : (FUNCTION_TYPE_INTERP == pFunc->funcType);
+    pSelect->hasInterpPseudoColFunc = pSelect->hasInterpPseudoColFunc ? true : fmIsInterpPseudoColumnFunc(pFunc->funcId);
     pSelect->hasLastRowFunc = pSelect->hasLastRowFunc ? true : (FUNCTION_TYPE_LAST_ROW == pFunc->funcType);
     pSelect->hasLastFunc = pSelect->hasLastFunc ? true : (FUNCTION_TYPE_LAST == pFunc->funcType);
     pSelect->hasTimeLineFunc = pSelect->hasTimeLineFunc ? true : fmIsTimelineFunc(pFunc->funcId);
@@ -3369,6 +3370,9 @@ static int32_t translateInterp(STranslateContext* pCxt, SSelectStmt* pSelect) {
     if (NULL != pSelect->pRange || NULL != pSelect->pEvery || NULL != pSelect->pFill) {
       return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_INTERP_CLAUSE);
     }
+    if (pSelect->hasInterpPseudoColFunc) {
+      return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_COLUMN, "Missing interp function");
+    }
     return TSDB_CODE_SUCCESS;
   }